shfmt:tldr:b145f
shfmt: Simplify the code, removing redundant pieces of syntax (i.e. removing "$" from vars in expressions).
$ shfmt --simplify ${filename}
try on your machine
The shfmt command is a shell script formatter that helps in formatting and beautifying shell scripts. The --simplify option is used to simplify and optimize the script's syntax.
In the command shfmt --simplify ${filename}, ${filename} is a placeholder for the actual filename of the shell script you want to format.
By running this command, the shfmt tool will read the contents of the file specified by ${filename}, simplify and optimize the script's syntax according to the rules defined by the tool, and then output the formatted script.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.